Portelet Bay (Beach) (Guernsey) weather

Headline:

A sunny morning, then turning cloudy. Showers in the west.

Today:

A mostly dry day, though a few showers are likely in Cornwall and northern Devon. Most areas will receive sunny spells in the morning before cloud arrives from the north during the afternoon. Light winds. Maximum temperature 9 °C.

Tonight:

The chance of showers in the west continues overnight, spreading over to Bristol before dawn. Winds remain light and cloud will break up for a time during the early hours. Minimum temperature 1 °C.

Monday:

A few morning showers are likely before outbreaks of rain move in from the west around midday, becoming heavier by the evening. Staying cloudy all day and winds strengthening later. Maximum temperature 11 °C.

Outlook for Tuesday to Thursday:

Tuesday and Wednesday will see further heavy rain, with strong winds, especially along coasts. Scattered showers and sunny spells on Thursday, with strong winds in the east early on.

Updated: 04:00 (UTC) on Sun 17 Jan 2021

From Thursday onwards rather cold and unsettled conditions look likely for most of the UK, as a low pressure system remains to the northeast. Northwesterly winds from this system are expected to bring frequent showers, particularly to north and west-facing coasts, and this will likely fall as snow over high level areas, and also down to lower levels at times. Atlantic low-pressure systems are expected to cross the south of the country at times, bringing rainfall and periods of slightly milder temperatures, and there will be a risk of snowfall on the boundary between the mild and cold air masses. Northern and central areas are more likely to be affected by wintry hazards during this period.

Updated: 04:00 (UTC) on Sun 17 Jan 2021

Confidence for this period is low, though there is a signal for weaker than average westerly winds and for Atlantic low-pressure systems to track further south than normal. This will bring below-average temperatures to the north of the UK, with a greater than normal risk of wintry precipitation. Further south, there is a continued risk of unsettled conditions, with above-average rainfall and periods of slightly above average temperatures. There remains the potential for significant snowfall along the boundary between colder air to the north and the milder air in the south, with the greatest risk across central and northern areas. Through this period there is a greater than average chance of cold spells spreading across the whole UK at times with the associated risk of wintry hazards.

Updated: 04:00 (UTC) on Sun 17 Jan 2021